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i.MX8X: how to detect CPU type at runtime

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i.MX8X: how to detect CPU type at runtime

‎12-21-2020 03:57 AM
773 Views
Niebel-TQ
Contributor IV

Is there a way, to detect CPU type (i.MX8DX / i.MX8QXP / i.MX8DXP) at runtime via SCU? I could not find it in the SCFW porting kit documentation or in the CPU reference manual.

Thanks in advance

 

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3 Replies

‎12-22-2020 11:09 PM
758 Views
b36401
NXP Employee
NXP Employee

No, There is no this feature.
Sorry for the inconvenience.

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‎01-06-2021 09:27 AM
742 Views
Niebel-TQ
Contributor IV

Really not nice. Is this possible from software running on Cortex A?

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‎08-30-2022 12:54 AM
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Niebel-TQ
Contributor IV

Just bring back this question to live, looking through current U-Boot sources there is some usage of fuse word 6, which has the Temprature grade in bit [13:12]. I see usage of bit [7:0] as criteria for disabled cores. The fusemap manual states this as reserved bits. Is there an newer version of the fusemap documentation available? We need a way to distinguish between i.MX8QXP / i.MXDXP / i.MX8DX at runtime.

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